U.S. patent application number 12/888806 was filed with the patent office on 2011-03-24 for application server and method of controlling operation of same.
This patent application is currently assigned to FUJIFILM Corporation. Invention is credited to Kentaro WATANABE.
Application Number | 20110072304 12/888806 |
Document ID | / |
Family ID | 43757660 |
Filed Date | 2011-03-24 |
United States Patent
Application |
20110072304 |
Kind Code |
A1 |
WATANABE; Kentaro |
March 24, 2011 |
APPLICATION SERVER AND METHOD OF CONTROLLING OPERATION OF SAME
Abstract
A mobile telephone accesses an application server and
application software is launched in the server. The application
software is run on the application server based upon instructions
from the mobile telephone and the result is displayed on the mobile
telephone. If the mobile telephone and application server are
disconnected and a fixed period of time elapses, the application
software that has been launched in the application server is
terminated. Since the application server can be allocated to
software launched by mobile telephones other than the
above-mentioned mobile telephone, the application server can be
utilized more efficiently.
Inventors: |
WATANABE; Kentaro;
(Ashigarakami-gun, JP) |
Assignee: |
FUJIFILM Corporation
Tokyo
JP
|
Family ID: |
43757660 |
Appl. No.: |
12/888806 |
Filed: |
September 23, 2010 |
Current U.S.
Class: |
714/18 ; 714/55;
714/E11.024; 714/E11.131 |
Current CPC
Class: |
H04L 65/1063 20130101;
G06F 11/0757 20130101 |
Class at
Publication: |
714/18 ; 714/55;
714/E11.024; 714/E11.131 |
International
Class: |
G06F 11/14 20060101
G06F011/14; G06F 11/07 20060101 G06F011/07 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 24, 2009 |
JP |
2009-218916 |
Claims
1. An application server which is capable of communicating with a
number of mobile terminals and in which application software has
been installed, said application server comprising: a launching
device, responsive to an application-software launch request
transmitted from one mobile terminal among the number of mobile
terminals, for launching application software whose launch has been
requested; an image data transmitting device for transmitting image
data, which represents an image of the application software
launched by said launching device, to the one mobile terminal; an
application software control device for controlling the application
software, which has been launched by said launching device, so as
to operate in accordance with application-software operating
instruction data transmitted from the one mobile terminal owing to
receipt at the mobile terminal of the image data transmitted from
said image data transmitting device; a transmission control device
for controlling said image data transmitting device in such a
manner that image data representing the image of the application
software controlled by said application software control device is
transmitted to the one mobile terminal; a disconnect determination
device for determining whether communication with the one mobile
terminal has been severed; and a time-expiration determination
device for determining whether a fixed period of time has expired
from a moment at which said disconnect determination device
determines that communication with the one mobile terminal has been
severed; wherein in response to a determination by said
time-expiration determination device that the fixed period of time
has expired, said application software control device terminates
the application software launched by said launching device.
2. The server according to claim 1, wherein in response to
re-connection of the one mobile terminal and the application server
before the fixed period of time expires from the moment at which
said disconnect determination device determines that communication
with the one mobile terminal has been severed, said image data
transmitting device transmits the image data, which represents the
image of the application software that has been launched by said
launching device, to the one mobile terminal.
3. The server according to claim 1, wherein in response to
re-connection of the one mobile terminal and the application server
and to issuance of a re-transmit request for the image data, which
represents the image of the application software that has been
launched by said launching device, before the fixed period of time
expires from the moment at which said disconnect determination
device determines that communication with the one mobile terminal
has been severed, said image data transmitting device transmits the
image data, which represents the image of the application software
that has been launched by said launching device, to the one mobile
terminal, and in response to re-connection of the one mobile
terminal and the application server and to issuance of a re-launch
request for the application software that has been launched by said
launching device, before the fixed length of time expires from the
moment at which said disconnect determination device determines
that communication with the one mobile terminal has been severed,
said image data transmitting device re-launches the application
software that has been launched by said launching device and
transmits the image data, which represents the image of the
re-launched application software, to the one mobile terminal.
4. The server according to claim 1, wherein said launching device
launches a plurality of items of application software in response
to launch requests, which have been transmitted from the one mobile
terminal, for the plurality of items of application software; said
image data transmitting device transmits image data, which
represents images of the plurality of items of application software
launched by said launching device, to the one mobile terminal; said
application software control device controls application software,
which has been operated at the one mobile terminal, among the items
of application software that have been launched by said launching
device, so as to operate in accordance with identification data,
which identifies the application software operated at the one
mobile terminal among the plurality of items of application
software, and with operating instruction data, which instructs
operation of the operated application software, transmitted from
the one mobile terminal owing to receipt at the mobile terminal of
the image data transmitted from said image data transmitting
device; and in response to re-connection of the one mobile terminal
and the application server and to issuance of a re-transmit request
for the image data, which represents the image of prescribed
application software among the plurality of items of application
software, before the fixed period of time expires from the moment
at which said disconnect determination device determines that
communication with the one mobile terminal has been severed, said
image data transmitting device transmits the image data, which
represents the image of the prescribed application software among
the images of application software that have been launched by said
launching device, to the one mobile terminal.
5. A method of controlling operation of an application server which
is capable of communicating with a number of mobile terminals and
in which application software has been installed, said method
comprising the steps of: launching application software, whose
launch has been requested, in response to an application-software
launch request transmitted from one mobile terminal among the
number of mobile terminals; transmitting image data, which
represents an image of the application software launched, to the
one mobile terminal; controlling the application software, which
has been launched, so as to operate in accordance with
application-software operating instruction data transmitted from
the one mobile terminal owing to receipt at the mobile terminal of
the image data transmitted; exercising control in such a manner
that image data representing the image of the application software
controlled is transmitted to the one mobile terminal; determining
whether communication with the one mobile terminal has been
severed; determining whether a fixed period of time has expired
from a moment at which severance of communication with the one
mobile terminal has been determined; and terminating the launched
application software in response to a determination that the fixed
length of time has expired.
6. A recording medium storing a computer-readable program for
controlling operation of an application server which is capable of
communicating with a number of mobile terminals and in which
application software has been installed, said program controlling
operation of the application software so as to: launch application
software, whose launch has been requested, in response to an
application-software launch request transmitted from one mobile
terminal among the number of mobile terminals; transmit image data,
which represents an image of the application software launched, to
the one mobile terminal; control the application software, which
has been launched, so as to operate in accordance with
application-software operating instruction data transmitted from
the one mobile terminal owing to receipt at the mobile terminal of
the image data transmitted; transmit image data representing the
image of the controlled application software to the one mobile
terminal; determine whether communication with the one mobile
terminal has been severed; determine whether a fixed period of time
has expired from a moment at which severance of communication with
the one mobile terminal has been determined; and terminate the
launched application software in response to a determination that
the fixed length of time has expired.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] This invention relates to an application server and to a
method of controlling the operation thereof.
[0003] 2. Description of the Related Art A thin client system
narrows down the functions of a client computer, such as a mobile
terminal, to functions such as display and communication with a
server, with application software and files, etc., being managed by
the server. While application software is launched by the server,
communication takes place between the client computer and the
server, operation is instructed by the client computer and
processing is executed by the server based upon these instructions.
The result of such processing by the server is transmitted to the
client computer. Although the client computer and server
communicate, there are instances where communication is severed. In
order to prepare for such severance of communication, there is a
technique whereby image information is preserved in the client
computer and is not transmitted to the client computer at
re-connection unless the image has changed (see the specification
of Japanese Patent Application Laid-Open No. 2008-71092) and a
technique that omits the labor of authentication at re-connection
by having the server preserve information necessary for session
establishment (see the specification of Japanese Patent Application
Laid-Open No. 2005-63169).
[0004] A software application currently launched is maintained in
the launched state by the server even in a case where communication
between the client computer and server is severed. In a thin client
system in which a number of mobile terminals access a server, the
efficiency of server utilization is poor. Nevertheless, no
consideration has been given to improving the efficiency of server
utilization in such a system.
SUMMARY OF THE INVENTION
[0005] Accordingly, an object of the present invention is to
improve the efficiency of server utilization.
[0006] The present invention provides an application server a
launching device (launching means), responsive to an
application-software launch request transmitted from one mobile
terminal among the number of mobile terminals, for launching
application software whose launch has been requested; an image data
transmitting device (image data transmitting means) for
transmitting image data (a launch image, processing image,
operation image), which represents an image of the application
software launched by the launching device, to the one mobile
terminal; an application software control device (application
software control means) for controlling the application software,
which has been launched by the launching device, so as to operate
in accordance with application-software operating instruction data
transmitted from the one mobile terminal owing to receipt at the
mobile terminal of the image data transmitted from the image data
transmitting device; a transmission control device (transmission
control means) for controlling the image data transmitting device
in such a manner that image data representing the image of the
application software controlled by the application software control
device is transmitted to the one mobile terminal; a disconnect
determination device (disconnect determination means) for
determining whether communication with the one mobile terminal has
been severed; and a time-expiration determination device
(time-expiration determination means) for determining whether a
fixed period of time has expired from a moment at which the
disconnect determination device determines that communication with
the one mobile terminal has been severed; wherein in response to a
determination by the time-expiration determination device that the
fixed period of time has expired, the application software control
device terminates the application software launched by the
launching device.
[0007] The present invention also provides an operation control
method suited to the above-described application software.
Specifically, the present invention provides a method of
controlling operation of application server which is capable of
communicating with a number of mobile terminals and in which
application software has been installed, the method comprising:
launching application software, whose launch has been requested, in
response to an application-software launch request transmitted from
one mobile terminal among the number of mobile terminals;
transmitting image data (a launch image, processing image,
operation image), which represents an image of the application
software launched, to the one mobile terminal; controlling the
application software, which has been launched, so as to operate in
accordance with application-software operating instruction data
transmitted from the one mobile terminal owing to receipt at the
mobile terminal of the image data transmitted; exercising control
in such a manner that image data representing the image of the
application software controlled is transmitted to the one mobile
terminal; determining whether communication with the one mobile
terminal has been severed; determining whether a fixed period of
time has expired from a moment at which severance of communication
with the one mobile terminal has been determined; and terminating
the launched application software in response to a determination
that the fixed length of time has expired.
[0008] In accordance with the present invention, application
software is launched in an application server in response to a
request from a mobile terminal. Image data representing the image
of the launched application software is transmitted from the
application server to the mobile terminal, and the image of the
application software is displayed on the display screen of the
mobile terminal. The user of the mobile terminal performs an
operation using the image of the application software being
displayed on the display screen and operating instruction data is
transmitted from the mobile terminal to the application server. The
application software runs in the application server in accordance
with the operating instruction data and image data representing the
result of this operation is transmitted from the application server
to the mobile terminal. When communication between the mobile
terminal and the application server is severed, whether a fixed
period of time has elapsed from such severance is checked. If the
fixed period of time has elapsed from severance, then the
application software that has been launched is terminated. As a
result, the application server can communicate with mobile
terminals other than the one with which is was communicating and
can launch application software. This makes possible more efficient
utilization of the application server.
[0009] By way of example, in response to re-connection of the one
mobile terminal and the application server before the fixed period
of time expires from the moment at which the disconnect
determination device determines that communication with the one
mobile terminal has been severed, the image data transmitting
device transmits the image data, which represents the image of the
application software that has been launched by the launching
device, to the one mobile terminal.
[0010] By way of example, in response to re-connection of the one
mobile terminal and the application server and to issuance of a
re-transmit request for image data, which represents the image of
the application software that has been launched by the launching
device, before the fixed period of time expires from the moment at
which the disconnect determination device determines that
communication with the one mobile terminal has been severed, the
image data transmitting device transmits the image data, which
represents the image of the application software that has been
launched by the launching device, to the one mobile terminal, and
in response to re-connection of the one mobile terminal and the
application server and issuance of a re-launch request for the
application software that has been launched by the launching
device, before the fixed length of time expires from the moment at
which the disconnect determination device determines that
communication with the one mobile terminal has been severed, the
image data transmitting device re-launches the application software
that has been launched by the launching device and transmits the
image data, which represents the image of the re-launched
application software, to the one mobile terminal.
[0011] By way of example, the launching device launches a plurality
of items of application software in response to launch requests for
a plurality of items of application software transmitted from the
one mobile terminal. Further, by way of example, the image data
transmitting device transmits image data, which represents images
of the plurality of items of application software launched by the
launching device, to the one mobile terminal. Furthermore, by way
of example, the application software control device controls
application software, which has been operated at the one mobile
terminal, among the items of application software that have been
launched by the launching device, so as to operate in accordance
with identification data, which identifies the application software
operated at the one mobile terminal among the plurality of items of
application software, and with operating instruction data, which
instructs operation of the operated application software,
transmitted from the one mobile terminal owing to receipt at the
mobile terminal of the image data transmitted from the image data
transmitting device. Further, by way of example, in response to
re-connection of the one mobile terminal and the application server
and issuance of a re-transmit request for image data, which
represents the image of prescribed application software among the
plurality of items of application software, before the fixed period
of time expires from the moment at which the disconnect
determination device determines that communication with the one
mobile terminal has been severed, the image data transmitting
device transmits the image data, which represents the image of the
prescribed application software among the images of application
software that have been launched by the launching device, to the
one mobile terminal.
[0012] Other features and advantages of the present invention will
be apparent from the following description taken in conjunction
with the accompanying drawings, in which like reference characters
designate the same or similar parts throughout the figures
thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] FIG. 1 illustrates an overview of a thin client system;
[0014] FIG. 2 is a block diagram illustrating the electrical
configuration of an application server;
[0015] FIG. 3 illustrates an example of a table of applications
currently launched;
[0016] FIGS. 4 to 6 are flowcharts illustrating processing executed
by the thin client system;
[0017] FIG. 7 illustrates the relationship between an image
displayed on a mobile telephone and software that has been launched
in an application server;
[0018] FIGS. 8A, 8B, 8C and FIGS. 9A, 9B and 9c illustrate the
relationship between images displayed on the mobile telephone and
software that has been launched in the application server;
[0019] FIG. 10 illustrates an example of a table of applications
currently launched;
[0020] FIG. 11 is a flowchart showing a portion of processing
executed by the thin client system; and
[0021] FIG. 12 illustrates the relationship between an image
displayed on a mobile telephone and software that has been launched
in an application server.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022] A preferred embodiment of the present invention will now be
described with reference to the drawings.
[0023] FIG. 1 illustrates an overview of a thin client system
according to a preferred embodiment of the present invention.
[0024] The thin client system includes a mobile telephone (mobile
terminal) 1 and an application server 10 capable of communicating
via the Internet. Although only one mobile telephone 1 is shown in
FIG. 1, a number of mobile telephones are capable of communicating
with the application server 10 in actuality.
[0025] The thin client system according to this embodiment is such
that the mobile telephone 1 and application server 10 communicate
with each other, the application server 10 launches an application
program, the mobile telephone 1 issues operating instructions, and
the application server 10 performs operations conforming to these
operating instructions and sends the mobile telephone 1 the result
of processing the application program. Since the mobile telephone 1
need not run the application program and need only display an image
indicating the result of processing the application program and
perform such tasks as the issuance of the operating instructions,
an application program can essentially be utilized even in the
limited-capability mobile telephone 1. Naturally, it may be so
arranged that the processing according to this embodiment is
executed also in a mobile telephone (mobile terminal) that is
capable of running application programs.
[0026] Connected to the application server 10 is a user
authentication database 21 for authenticating users who can utilize
the thin client system (application server 10). Stored in the user
authentication database 21 is identification data identifying the
users who are capable of utilizing the application server 10, and
data identifying application software currently being used by the
users.
[0027] FIG. 2 is a block diagram illustrating the electrical
configuration of the application server 10.
[0028] The overall operation of the application server 10 is
controlled by a CPU 11. A memory 18 storing prescribed data and the
like is connected to the CPU 11.
[0029] Accommodated within the application server 10 is a hard disk
19 accessible by a hard-disk drive 17. An application software
group 20 composed of a plurality of items of application software
has been recorded on the hard disk 19. An operation program of the
application server 10 is stored in the hard disk 19.
[0030] The application server 10 includes a server connecting
device 12 for connecting to the Internet and communicating with the
mobile telephone 1. Connection and disconnection to and from the
mobile telephone 1 also are detected by the server connecting
device 12. The application server 10 further includes a user
management authentication unit 13 for authenticating whether a user
has the right to utilize the application software group 20. If
identification data of a user of the mobile telephone 1 that has
accessed the application server 10 has been stored in the user
authentication database 21, then this user is authenticated by the
user management authentication unit 13.
[0031] The application server 10 further includes an application
management unit 14 for managing the launching, termination and
execution, etc., of the applications constituting the application
software group 20. The application server 10 further includes a
display-device input/output unit 15 for inputting data representing
instructions to operate application software in the mobile
telephone 1, causing the application software to execute the
operation of the application software in the mobile telephone 1 and
transmitting image data, which represents an image of the
application software, to the mobile telephone 1.
[0032] The application server 10 further includes an
application-launch holding timer 16. If communication between the
mobile telephone 1 and application server 10 is severed, the
application-launch holding timer 16 starts timekeeping from the
moment of such severance.
[0033] Although the user management authentication unit 13,
application management unit 14 and display-device input/output unit
15, etc., are implemented by hardware in FIG. 2, these need not
necessarily be implemented by hardware and may be implemented by
software.
[0034] FIG. 3 is an example of a table, which is recorded in the
user authentication database 21 (or in a memory 18), indicating
applications currently launched. This table of applications
currently launched is such that data identifying application
software currently launched (IDs of the applications launched) in
the application server 10 is stored for every user utilizing the
system. For example, it will be understood that application
software currently launched (utilized) by a user "AAA" is specified
by an application ID "Browser-aaa". Similarly, with regard to other
users as well, items of application software that have been
launched by the other users can be determined from this table of
currently launched applications.
[0035] FIGS. 4 to 6 are flowcharts indicating processing by the
thin client system. FIGS. 7 to 9A-9C schematically illustrate the
relationship between application software that has been launched in
the application server 10 and an image of the application software
displayed on the display screen of the mobile telephone 1.
[0036] With reference to FIG. 7, a display screen 2 is formed on
the upper portion of the front side of the mobile telephone 1, and
a keypad 4 is formed below the display screen 2.
[0037] When the mobile telephone 1 issues a connection request to
the application server 10 (step 31 in FIG. 4), the application
server 10 executes user authentication processing (step 51 in FIG.
4). In the connection request, the identification data of the
mobile telephone 1 (the user) is transmitted from the mobile
telephone 1 to the application server 10, and user authentication
processing is executed based upon this identification data. If the
user is authenticated ("YES" at step 52 in FIG. 4), then a
communication connection between the mobile telephone 1 and
application server 10 is established ("YES" at step 32 in FIG. 4;
step 53 in FIG. 4).
[0038] When the mobile telephone 1 and application server 10 are
connected for communication, the application software utilized by
the user of the mobile telephone 1 is selected using the keypad 4
of the mobile telephone 1 (step 33 in FIG. 4). The names of a
plurality of utilizable items of application software are displayed
on the display screen 2 of the mobile telephone 1 and the desired
application software is selected by choosing the name from among
the displayed names. The application ID identifying the selected
application software is transmitted from the mobile telephone 1 to
the application server 10 (step 34 in FIG. 4).
[0039] When the application ID transmitted from the mobile
telephone 1 is received at the application server 10, application
software 20A identified by this application ID is launched in the
application server 10 (step 54 in FIG. 4; FIG. 7). Image data
representing the image of the application software 20A launched in
the application server 10 is transmitted from the application
server 10 to the mobile telephone 1 (step 55 in FIG. 4).
[0040] The image of the application software 20A represented by the
image data transmitted from the application server 10 is displayed
on the display screen 2 of the mobile telephone 1 (step 35 in FIG.
4; FIG. 7).
[0041] While viewing the image of the application software 20A
being displayed on the display screen 2, the user of the mobile
telephone 1 issues operating instructions using the keypad 4 (step
36 in FIG. 5). Data representing the operating instructions input
to the mobile telephone 1 is transmitted from the mobile telephone
1 to the application server 10 (step 37 in FIG. 5).
[0042] When the data representing the operating instructions
transmitted from the mobile telephone 1 is received by the
application server 10, the application software that has been
launched in the application server 10 runs in accordance with the
data representing the operating instructions (step 56 in FIG.
5).
[0043] Whether communication between the mobile telephone 1 and
application server 10 has been severed is checked (steps 38, 57 in
FIG. 5). If communication has not been severed ("NO" at steps 38,
57 in FIG. 5), then whether the mobile telephone 1 has sent the
application server 10 an application-software terminate request is
checked (steps 39, 58 in FIG. 5). If an application-software
terminate request is transmitted from the mobile telephone 1 to the
application server 10 ("YES" at step 39 in FIG. 5; step 40 in FIG.
5; "YES" at step 58 in FIG. 5), then the application software
launched in the application server 10 is terminated in accordance
with this terminate request (step 59 in FIG. 5).
[0044] If an application-software terminate request has not been
transmitted from the mobile telephone 1 to the application server
10 ("NO" at steps 39 and 58 in FIG. 5), then image data indicating
the result of processing from running of the application software
in accordance with the operating instructions is transmitted from
the application server 10 to the mobile telephone 1 (step 55 in
FIG. 4). The image indicating the result of processing from running
of the application software is displayed on the display screen 2 of
the mobile telephone 1 (step 35 in FIG. 4).
[0045] If communication between the mobile telephone 1 and
application server 10 is severed ("YES" at steps 38 and 57 in FIG.
5; FIGS. 8A and 9A), then the application-launch holding timer 16
of the application server 10 starts timekeeping (step 60 in FIG.
6).
[0046] When the user of the mobile telephone 1 becomes aware of the
fact that communication has been severed, the mobile telephone 1 is
re-connected to the application server 10 by the user of the mobile
telephone 1 (step 41 in FIG. 6). At re-connection, user
authentication processing of the mobile telephone 1 is executed
(step 61 in FIG. 6). If the user is authenticated (step 62 in FIG.
6) and re-connection between the mobile telephone 1 and application
server 10 is established (step 42 in FIG. 6), then the timer 16 is
reset (step 63 in FIG. 6). The application server 10 checks the
application software launched by the user of the mobile telephone 1
(step 64 in FIG. 6).
[0047] Whether the application software that had been launched
before severance of communication with the application server 10 is
to be re-launched it checked at the mobile telephone 1 by an
instruction (input) from the user of the mobile telephone 1 (step
43 in FIG. 6). If the application software is to be re-launched
("YES" at step 43 in FIG. 6), then a re-launch request is
transmitted from the mobile telephone 1 to the application server
10 (step 44 in FIG. 6).
[0048] If a re-launch request transmitted from the mobile telephone
1 is received at the application server 10 ("YES" at step 65 in
FIG. 6), the application software that has been launched is
re-launched (step 66 in FIG. 6; FIG. 8B). Image data representing
the image of the re-launched application software is transmitted
from the application server 10 to the mobile telephone 1 (step 55
in FIG. 4) and the image of the re-launched application software is
displayed on the display screen 2 of the mobile telephone 1 (step
35 in FIG. 4; FIG. 8C). The application software re-launched in the
application server 10 runs based upon the operating instructions
from the mobile telephone 1 in the manner described above (step 56
in FIG. 5).
[0049] If a re-launch request is not received at the application
server 10 even if a fixed length of time elapses following
severance of communication ("NO" at steps 43 and 65 in FIG. 6),
then the application software that had been launched in the
application server 10 is not re-launched and the image data
representing the image of the application software that is being
launched is transmitted from the application server 10 to the
mobile telephone 1 (step 55 in FIG. 4; FIG. 9B). The image of the
application software is again displayed on the display screen 2 of
the mobile telephone 1 (step 35 in FIG. 4; FIG. 9C).
[0050] If user authentication based upon the re-connect request
from the mobile telephone 1 is not performed after severance of
communication between the mobile telephone 1 and application server
10 ("NO" at step 62 in FIG. 6), then the timer 16 determines
whether the fixed period of time has elapsed following the
severance of communication (step 67 in FIG. 6). If the fixed period
of time elapses ("YES" at step 67 in FIG. 6), then the application
software that has been launched by the user of the mobile telephone
1 is terminated (step 68 in FIG. 6). It goes without saying that in
a case where the application server 10 is communicating with a
number of mobile telephones and communication is severed,
timekeeping by the timer 16 starts from the moment of severance for
every mobile telephone whose communication has been severed and
whether the fixed period of time has elapsed or not is checked for
every mobile telephone. Application software that has been launched
in a mobile telephone for which the fixed period of time has
elapsed is terminated.
[0051] In this embodiment, application software that has been
launched is terminated if a fixed period of time elapses following
severance of communication. This means that the capability of the
application server 10 can be allocated to mobile telephones other
than the mobile telephone that was communicating and, hence, that
the efficiency of utilization of the application server can be
improved.
[0052] FIGS. 10 to 12 illustrate a modification. This modification
is such that a plurality of items of application software are
launched by a mobile telephone that communicates with the
application server 10.
[0053] FIG. 10 illustrates an example of a table of applications
currently launched.
[0054] Here, for every user of mobile telephones, one or a
plurality of application IDs that have been launched in the
application server 10 by each of the users using their respective
mobile telephones have been stored. For example, it will be
understood that user "AAA" has launched application software
identified by application ID "Browser-aaa", application software
identified by application ID "Note-aaa" and application software
identified by application ID "Keisan-aaa".
[0055] FIG. 11 is a flowchart showing a portion of processing
executed by this thin client system. This flowchart corresponds to
the flowchart shown in FIG. 6. Processing steps in FIG. 11
identical with those shown in FIG. 6 are designated by like step
numbers. FIG. 12 schematically illustrates the relationship between
application software that has been launched in the application
server 10 and an image of the application software displayed on the
display screen of the mobile telephone 1.
[0056] When a connection is established by re-connection after
establishment of communication, a menu image 5 for selecting the
application software that had been launched prior to the severance
of communication is displayed on the display screen 2 of the mobile
telephone 1, as described above. Application software for
performing re-launch or continuation processing (the latter is
processing which utilizes the application software that had been
launched before severance of communication, without performing
re-launch as described above) is selected using the menu image 5
(step 81 in FIG. 11).
[0057] With reference to FIG. 12, it is assumed that the
application server 10 has launched the application software
identified by application ID "Browser-aaa", the application
software identified by application ID "Note-aaa" and the
application software identified by application ID "Keisan-aaa". In
this case, the menu image 5 on the display screen 2 of the mobile
telephone 1 displays areas 6A, 6B and 6C, in which appear the names
of the respective items of application software identified by the
application ID "Browser-aaa", application software identified by
the application ID "Note-aaa" and application software identified
by the application ID "Keisan-aaa", which have been launched in the
mobile telephone 1, and an area 6D in which the character string of
a new application appears. A cursor 7 moved freely up and down by
the keypad 4 of the mobile telephone 1 is displayed on the left
side of these areas 6A to 6D.
[0058] If a decision button that has been assigned to a prescribed
button included in the keypad 4 of mobile telephone 1 is pressed,
the application software whose name appears in the area on the
right side where the cursor 7 is situated will be selected from
among the areas 6A to 6D. If the area 6D is selected, the new
application software will be selected.
[0059] In a case where application software is to be re-launched
("YES" at step 43) (a button for designating re-launch or
continuation processing would be assigned to a button of the keypad
4), the application ID of the application software specified by the
area selected from among the areas 6A to 6C is transmitted together
with a re-launch request from the mobile telephone 1 to the
application server 10 (step 83).
[0060] If a re-launch request and application ID transmitted from
the mobile telephone 1 are received by the application server 10
("YES" at step 65), then the application software identified by the
application ID is re-launched (step 91). Processing from this point
onward is similar to that described above.
[0061] In a case where application software is not re-launched
("NO" at step 43), application software for which processing is to
continue is specified by the area selected from among the areas 6A
to 6C. The application ID for which processing is to continue is
transmitted from the mobile telephone 1 to the application server
10 (step 82).
[0062] When the application ID for which processing is to continue
is received by the application server 10, the application software
currently launched and whose processing is to continue is specified
by this application ID (step 92). Image data representing the image
of the specified application software is not re-launched; rather,
the image of this application software is transmitted from the
application server 10 to the mobile telephone 1.
[0063] It goes without saying that application software selected by
the menu image 5 is not limited to a single item of application
software; several items of software currently launched can be
selected. Further, if the area 6D of the new application is
selected in the menu image 5, then a list of items of application
software capable of being launched anew will be transmitted from
the application server 10 to the mobile telephone 1 and application
software can be selected from the list. Application software thus
selected can be launched and processed in the application server 10
in the manner described above.
[0064] As many apparently widely different embodiments of the
present invention can be made without departing from the spirit and
scope thereof, it is to be understood that the invention is not
limited to the specific embodiments thereof except as defined in
the appended claims.
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